56575851686 has 4 divisors (see below), whose sum is σ = 84863777532. Its totient is φ = 28287925842.

The previous prime is 56575851679. The next prime is 56575851721. The reversal of 56575851686 is 68615857565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14143962920 + ... + 14143962923.

It is an arithmetic number, because the mean of its divisors is an integer number (21215944383).

Almost surely, 2^56575851686 is an apocalyptic number.

56575851686 is a deficient number, since it is larger than the sum of its proper divisors (28287925846).

56575851686 is a wasteful number, since it uses less digits than its factorization.

56575851686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28287925845.

The product of its digits is 60480000, while the sum is 62.

The spelling of 56575851686 in words is "fifty-six billion, five hundred seventy-five million, eight hundred fifty-one thousand, six hundred eighty-six".